A new flavonoid from the leaves of Garcinia mckeaniana Craib and α-glucosidase and acetylcholinesterase inhibitory activities

Autor: Thi Thu Ha Nguyen, Van Tuyen Nguyen, Pham Van Cuong, Tra Nguyen Thanh, Tu Anh Le Thi, Doan Thi Mai Huong, Bich Ngan Truong, Marc Litaudon, Son Ninh The
Přispěvatelé: Institut de Chimie des Substances Naturelles (ICSN), Institut de Chimie du CNRS (INC)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2022
Předmět:
Zdroj: Natural Product Research
Natural Product Research, Taylor & Francis, 2021, pp.1-11. ⟨10.1080/14786419.2021.1916019⟩
ISSN: 1478-6419
1029-2349
DOI: 10.6084/m9.figshare.14531640
Popis: From the ethyl acetate extract (EtOAc) of the Vietnamese Garcinia mckeaniana leaves, a new flavone 8-C-glycoside 2'',6''-di-O-acetylvitexin (1), together with six known analogs 2-7 were isolated. Their structures were determined by spectral methods and compared with literature data. In α-glucosidase inhibitory assay, the EtOAc extract and its flavone and biflavone derivatives possessed the significant IC50 range of 9.17-97.53 µM, as compared with that of the positive control acarbose (249 µM). Flavones and biflavones showed are better than flavone glycosides in both α-glucosidase and acetylcholinesterase inhibitory activities
Databáze: OpenAIRE